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4u-3u=20
We simplify the equation to the form, which is simple to understand
4u-3u=20
We move all terms containing u to the left and all other terms to the right.
+4u-3u=+20
We simplify left and right side of the equation.
+1u=+20
We divide both sides of the equation by 1 to get u.
u=20
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